| SWCNTs | Single-walled carbon nanotubes |
| CHIT | Chitosan |
| FA | Folic acid |
| FITC | Fluorescein isothiocyanate |
| PPa | Pyropheophorbide a |
| PDT | Photodynamic therapy |
| EDC | 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride |
| NHS | N-hydroxysuccinimide |
| TEM | Transmission electron microscope |
| DMEM | Dulbecco’s modified Eagle’s medium |
| DMSO | Dimethylsulfoxide |
| CCK8 | Cell Counting Kit-8 |